Ordinarily the way in which we would measure or try to describe power is we try to describe it by comparing it to something else you know. So you can say, “A hurricane has one thousandth of the power of a nuclear warhead. A nuclear warhead has one millionth of the power of an explosion on the surface of the sun. The sun has one billionth of the power of an exploding supernova.”

How do we describe the power of God? Do we say, “His power is the power of 100 supernovas, a million supernovas, or a billion billion?” Paul is saying here, “No, no, no. God is not at the top of a scale. God has never been on the scale, so he is not even off the scale. He utterly transcends scales.” The reason for that we’re told again and again in the Psalms. The Psalms tell us, “… power belongs to God.” Now look at that. Look and wonder. “… power belongs to God” means not that God has more power than anything or anyone else, but that anyone or anything that has even an atom of power has it because God has delegated it to him. God has all the power.

~Tim Keller~

The Timothy Keller Sermon Archive (New York City: Redeemer Presbyterian Church, 2013) A sermon preached July 9, 1989 titled: CHRIST OUR HEAD as part of “The King and the Kingdom” series from Ephesians 1:15-23.

In Ephesians 5, Paul shows us that even on earth Jesus did not use his power to oppress us but sacrificed everything to bring us into union with him. And this takes us beyond the philosophical to the personal and the practical. If God had the gospel of Jesus’s salvation in mind when he established marriage, then marriage only “works” to the degree that approximates the pattern of God’s self-giving love in Christ. What Paul is saying not only answers the objection that marriage is oppressive and restrictive, but it also addresses the sense that the demands of marriage are overwhelming. There is so much to do that we don’t know where to start. Start here, Paul says. Do for your spouse what God did for you in Jesus, and the rest will follow.

This is the secret—that the gospel of Jesus and marriage explain one another. That when God invented marriage, he already had the saving work of Jesus in mind.

Marriage used to be a public institution for the common good, and now it is a private arrangement for the satisfaction of the individuals. Marriage used to be about us, but now it is about me.

But ironically, this newer view of marriage actually puts a crushing burden of expectation on marriage and on spouses in a way that more traditional understandings never did. And it leaves us desperately trapped between both unrealistic longings for and terrible fears about marriage.

Both men and women today want a marriage in which they can receive emotional and sexual satisfaction from someone who will simply let them “be themselves.” They want a spouse who is fun, intellectually stimulating, sexually attractive, with many common interests, and who, on top of it all, is supportive of their personal goals and of the way they are living now.

And if your desire is for a spouse who will not demand a lot of change from you, then you are also looking for a spouse who is almost completely pulled together, someone very “low maintenance” without much in the way of personal problems. You are looking for someone who will not require or demand significant change. You are searching, therefore, for an ideal person— happy, healthy, interesting, content with life. Never before in history has there been a society filled with people so idealistic in what they are seeking in a spouse.

There’s nothing in the Bible about how schools should be run, even though they are crucial to a flourishing society. There’s nothing there about business corporations or museums or hospitals. In fact, there are all sorts of great institutions and human enterprises that the Bible doesn’t address or regulate. And so we are free to invent them and operate them in line with the general principles for human life that the Bible gives us.

But marriage is different. As the Presbyterian Book of Common Worship says, God “established marriage for the welfare and happiness of humankind.” Marriage did not evolve in the late Bronze Age as a way to determine property rights. At the climax of the Genesis account of creation we see God bringing a woman and a man together to unite them in marriage. The Bible begins with a wedding (of Adam and Eve) and ends in the book of Revelation with a wedding (of Christ and the church). Marriage is God’s idea. It is certainly also a human institution, and it reflects the character of the particular human culture in which it is embedded. But the concept and roots of human marriage are in God’s own action, and therefore what the Bible says about God’s design for marriage is crucial.

The Latin word vocare–to call–is at the root of our common word “vocation.” Today the word often means simply a job, but that was not the original sense. A job is a vocation only if someone else calls you to do it and you do it for them rather than for yourself. And so our work can be a calling only if it is reimagined as a mission of service to something beyond merely our own interests. As we shall see, thinking of work mainly as a means of self-fulfillment and self-realization slowly crushes a person and undermines society itself.